4

Consider a seizure:
Although many events might have caused your problem, including syncope, consider an EEG to assess seizure potential. Also, get EKG to rule out transient cardiac arrythmia.
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7

Hypoglycemia?:
Those are all symptoms of a low blood sugar. If eating something makes the symptoms improve then that may be the cause. There are many other conditions that can cause these symptoms (some of which are more serious) so I would encourage you to see your Family Doctor about this.
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9

Side effect:
Cck is known to give side effects such as nausea, sometimes severe or abdominal cramps or bloating. Patients react differently to its administration. Usually these symptoms will disappear within few hours after the injection of cck. However, if you still feel significant nausea after 12-24 hours, please consult your doctor, this might not be related to the cck.
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10

Get checked out now:
Combination of symptoms is concerning regardless of age. Given that I'm typing this on a Saturday night, it's best to get him to an ER for an emergent evaluation. Confusion could be inadequate blood flow to brain due to heart failure resulting from heart attack which caused sudden sweats & nausea. That's just a wild shot in the dark. Bottom line, don't wait. Call 911 if necessary.
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